Production process of down-the-hole drill pipe
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Down-the-hole drilling tools are widely used in construction sites such as open-pit and underground mines, quarries, hydropower projects, water well drilling, mineral exploration, rock anchoring, geothermal excavation, and subway engineering excavation side pile support. Because the down-the-hole drill has a series of characteristics such as high drilling straightness, smooth hole wall, good rigidity of drill pipe and impactor, no dependence on high axial thrust, unlimited drilling depth, low equipment investment, and easy maintenance. The general attention of the rock engineering industry. Today we mainly come to understand the application of down-the-hole drill pipe.
Mainly used in rock breaking, anchor drilling, geothermal air conditioning hole, water well drilling, etc. The pipe body is made of materials produced by a well-known large-scale steel company in China. The two ends of the pipe body adopt an internal thickening process, and are tempered after friction welding. The surface nitriding treatment effectively eliminates the failure rate of hooks, snaps, and outer diameter bursts, and is more wear-resistant and easy to disassemble. All use precision imported CNC lathes and customized forming knives for thread processing. All threads are equipped with thread gauges that comply with international standards. Therefore, the quality of the drill pipes produced is stable and reliable, and the service life is greatly extended.
